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J·BJon BishopIndependent growth marketer

Reviews · Panel-data econometric study of review volume, ratings, and sales with product/time controls.

Do Online Reviews Matter? An Empirical Investigation of Panel Data

Decision Support Systems · 2008

Wenjing Duan, Bin Gu, Andrew B. Whinston

Summary

Review volume is positively associated with box-office demand, while the relationship between review valence and sales is more nuanced; review activity can be a demand signal as well as influence.

For your marketing

Possible founder application

Use it as a behavioral mechanism or experiment-design reference, not a direct forecast for a SaaS funnel.

Reported result

What the study found

Review volume is positively associated with box-office demand, while the relationship between review valence and sales is more nuanced; review activity can be a demand signal as well as influence.

Research question

What the authors investigated

Do online review volume and ratings affect sales, and how should firms interpret review metrics?

Design

Panel-data econometric study of review volume, ratings, and sales with product/time controls.

Sample and setting

Movie-market panel data linking online reviews and movie box-office performance over time.

Scope and transfer

Limitations to keep in view

Movie releases are a special high-information-good context; panel observational estimates cannot fully rule out unobserved publicity or reverse causality.

Research sources

ScienceDirect result identifies the article as an empirical panel-data investigation; the accessible paper reports movie panel variables and estimation. Direct publisher-page retrieval was recorded on 2026-10-09; this profile uses publisher metadata/abstract and does not claim independent review of unavailable full text.

Additional research source ↗

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